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508 

FZCA52 TJSJ 161348

CWFSJU



Coastal Waters Forecast

National Weather Service San Juan PR

948 AM AST Sun Aug 16 2020



Puerto Rico and the U.S. Virgin Islands Waters



Seas are provided as a range of the average height of the

highest 1/3 of the Seas...Along with the occasional height

of the average highest 10 percent of the Seas.



AMZ700-170230-

948 AM AST Sun Aug 16 2020



.SYNOPSIS FOR PUERTO RICO AND THE U.S. VIRGIN ISLANDS WATERS...

Tropical Storm Josephine will track well north of the region today, 

resulting in seas of up to 7 feet across portions of the offshore 

Atlantic waters that will fade this afternoon. A weak trough passage

associated with TS Josephine will allow winds to become gentle to 

moderate today. Winds will increase gradually Monday night and 

Tuesday to generate choppy to rough marine conditions by Wednesday. 

Moderate to fresh trade winds are expected to continue through 

Friday. Showers and isolated thunderstorms are expected with the 

trough passage today, followed by another tropical wave on Thursday.



$$



AMZ710-170230-

Atlantic Waters of Puerto Rico and USVI from 10 NM to 19.5N-

948 AM AST Sun Aug 16 2020



...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM AST THIS AFTERNOON...



.REST OF TODAY...East winds 5 to 10 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 10 seconds.

.TONIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds. Isolated

showers.

.MONDAY...East winds 10 to 15 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds. Isolated

showers through the day.

.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 8 seconds. Isolated

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 8 seconds. Isolated

showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 8 seconds. Isolated

showers.

.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 8 seconds. Scattered

showers. Isolated thunderstorms.



$$



AMZ712-170230-

Coastal Waters of Northern Puerto Rico out 10 NM-

948 AM AST Sun Aug 16 2020



.REST OF TODAY...East winds 5 to 10 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 10 seconds.

.TONIGHT...East winds 5 to 10 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 10 seconds.

Scattered showers through the night.

.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 10 seconds.

Scattered showers.

.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Isolated

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Scattered

showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Scattered

showers.

.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Scattered

showers.



$$



AMZ715-170230-

Coastal Waters of Northern USVI and Culebra out 10 NM-

948 AM AST Sun Aug 16 2020



.REST OF TODAY...East winds 5 to 10 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 10 seconds.

.TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Scattered

showers.

.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Scattered

showers through the day.

.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Scattered

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 8 seconds. Scattered

showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Scattered

showers.

.THURSDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Numerous

showers. Isolated thunderstorms.



$$



AMZ722-170230-

Anegada Passage Southward to 17N-

948 AM AST Sun Aug 16 2020



|...SMALL CRAFT SHOULD EXERCISE CAUTION...



.REST OF TODAY...East winds 10 to 15 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds.

.TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Scattered

showers.

.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Isolated

showers.

.MONDAY NIGHT...East winds 10 to 15 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Isolated

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 8 seconds. Scattered

showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 8 seconds. Isolated

thunderstorms. Scattered showers.

.THURSDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Numerous

showers. Isolated thunderstorms.



$$



AMZ725-170230-

Coastal Waters of Southern USVI Vieques and Eastern Puerto Rico out

10 NM-

948 AM AST Sun Aug 16 2020



...SMALL CRAFT SHOULD EXERCISE CAUTION...



.REST OF TODAY...East winds 10 to 15 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 10 seconds.

.TONIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 10 seconds.

Scattered showers.

.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Scattered

showers through the day.

.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Scattered

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Scattered

showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 8 seconds. Scattered

showers.

.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Numerous

showers. Isolated thunderstorms.



$$



AMZ732-170230-

Caribbean Waters of Puerto Rico from 10 NM to 17N-

948 AM AST Sun Aug 16 2020



.REST OF TODAY...East winds 5 to 10 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 10 seconds.

Scattered showers.

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 10 seconds.

Scattered showers.

.MONDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 10 seconds. Isolated

showers through the day.

.MONDAY NIGHT...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Isolated

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. North

swell around 4 feet. Scattered showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. North

swell around 4 feet. Isolated thunderstorms. Scattered showers.

.THURSDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Numerous

showers. Isolated thunderstorms.



$$



AMZ735-170230-

Coastal Waters of Southern Puerto Rico out 10 NM-

948 AM AST Sun Aug 16 2020



.REST OF TODAY...East winds 10 to 15 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Isolated showers through the day.

.TONIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 10 seconds.

Scattered showers through the night.

.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 8 seconds. Isolated

showers through the day.

.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 7 seconds. Isolated

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Isolated

showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. Scattered

showers.

.THURSDAY...Northeast winds 15 to 20 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 7 seconds. Isolated

showers.



$$



AMZ741-170230-

Mona Passage Southward to 17N-

948 AM AST Sun Aug 16 2020



.REST OF TODAY...East winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 10 seconds. Scattered showers through the day.

.TONIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet. Dominant

period 10 seconds. Isolated showers through the night.

.MONDAY...East winds 5 to 10 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 10 seconds. Isolated

showers through the day.

.MONDAY NIGHT...East winds 10 to 15 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 10 seconds. Isolated

showers.

.TUESDAY...East winds 15 to 20 knots. Seas 4 to 6 feet with

occasional seas up to 8 feet. Dominant period 7 seconds. North

swell around 4 feet. Isolated showers.

.WEDNESDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. Northeast

swell around 4 feet. Isolated thunderstorms, then isolated

showers.

.THURSDAY...East winds 15 to 20 knots. Seas 5 to 7 feet with

occasional seas up to 9 feet. Dominant period 7 seconds. Isolated

showers.



$$



AMZ742-170230-

Coastal Waters of Northwestern Puerto Rico out 10 NM-

948 AM AST Sun Aug 16 2020



.REST OF TODAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 7 seconds.

.TONIGHT...East winds 5 to 10 knots in the evening becoming

variable less than 5 knots. Seas 1 to 3 feet. Dominant period 7

seconds. Isolated showers.

.MONDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 8 seconds. Isolated thunderstorms in the

afternoon.

.MONDAY NIGHT...East winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 8 seconds.

.TUESDAY...Northeast winds 10 to 15 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 7 seconds. Scattered

showers.

.WEDNESDAY...East winds 10 to 15 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 8 seconds. Isolated

thunderstorms, then isolated showers.

.THURSDAY...Northeast winds 15 to 20 knots. Seas 2 to 4 feet with

occasional seas up to 5 feet. Dominant period 7 seconds. Isolated

thunderstorms, then isolated showers.



$$



AMZ745-170230-

Coastal Waters of Southwestern Puerto Rico out 10 NM-

948 AM AST Sun Aug 16 2020



.REST OF TODAY...Wind variable less than 5 knots becoming north 5

to 10 knots in the afternoon. Seas 2 feet or less. Dominant period

8 seconds.

.TONIGHT...East winds 5 to 10 knots. Seas 2 feet or less. Dominant

period 8 seconds. Isolated showers through the night.

.MONDAY...East winds 5 to 10 knots. Seas 2 feet or less. Dominant

period 8 seconds.

.MONDAY NIGHT...East winds 5 to 10 knots. Seas 2 feet or less.

Dominant period 7 seconds. Isolated showers through the night.

.TUESDAY...East winds 10 to 15 knots. Seas 1 to 3 feet. Dominant

period 7 seconds. Isolated showers.

.WEDNESDAY...East winds 10 to 15 knots. Seas 3 to 5 feet with

occasional seas up to 6 feet. Dominant period 8 seconds. Isolated

showers.

.THURSDAY...Northeast winds 5 to 10 knots. Seas 1 to 3 feet.

Dominant period 7 seconds. Isolated showers.



$$

